Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.gao.spb.ru/english/as/j2014/presentations/bell.pdf Дата изменения: Sun Sep 28 20:11:42 2014 Дата индексирования: Sun Apr 10 01:06:40 2016 Кодировка: Поисковые слова: ацобс бфмбофйюеулбс бопнбмйс

The Future of Almanac Services
An HMNAO perspective ...
JournИes SystХmes de RИfИrence Spatio-Temporels "Recent developments and prospects in ground-based and space astrometry" Pulkovo Observatory, St. Petersburg: 22-24 September 2014 Steve Bell, Susan Nelmes, Paresh Prema & James Whittaker Session 5: 24th September 2014 HM Nautical Almanac Office


This talk ...
History Examples of HMNAO Services



Current practice
Paper Web based



Next generation data services
Web based Mobile Apps



Future services
What might they be ...

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History (I)
Earliest texts considered to be almanacs go back to second millennium BCE ­ hemerologies and parapegmata Babylonian, Greek and Islamic almanacs ­ zijs and tables Medieval almanacs ­ RegioMontanus (1472)



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History (II)
Early Astronomical Ephemerides
La Connaissance des Temps ou calendrier et ИphИmИrides du lever & coucher du Soleil, de la lune & des autres planХtes, Picard (1679) Astronomische Ephemeriden, Hell (1757) The Nautical Almanac and Astronomical

Ephemeris, Maskelyne (1767)
Berliner Astronomisches Jahrbuck, Bode (1776) Almanaque Nautico (1792)

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HMNAO Services (I)

One of the location entry methods for Websurf ­ HMNAO's dynamical data resource

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HMNAO Services (II)
Visibility of the new crescent moon for Ramadan 2014

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HMNAO Services (III)

Global and local circumstances for March 20th 2015 Total Eclipse of the Sun

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HMNAO Services (II)

Ground Illumination data for maritime activities

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Current Services (I)
Paper
User friendly Archival Expensive / Distributor chains



Web
Need internet access Lack of flexibility Access to large amounts of data

Ephemeral

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Current Services (II)
Hybrid Publications
e-publications e.g. e-NA pdf only publications e.g. UKAA



Software
NavPac

Paper + Web
AsA Online

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Next Generation Services
Web
SOAP / REST services Access by flexible geographical tools / location sensitive software Customisation of web pages on a per user basis

Mobile apps
Services that do not require large amounts of data Creative presentation of data

Location / Orientation sensitive
Augmented reality
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Future Services ...
Delivery of data by different means & methods
Youtube Repackaging with other data e.g. e-Navigator Make more use of data visualisation More flexible licensing of data to make creation of new products simpler



Standards
UT1/UTC ­ Leap Seconds

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Visualisation of data (I)

See http://astro.ukho.gov.uk/data/tn/naotn75.pdf
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Visualisation of data (II)

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Thank you /
Any questions ...

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